New polypeptides comprising two linked chains, useful for treating viral infections of the respiratory tract, specifically influenza, are more easily absorbed than natural proteins

摘要

Isolated polypeptides (I) containing two linked chains are new. Isolated polypeptides of formula (I) containing two linked chains are new (BZA)n (I) A and B = chains of 123 and 257 amino acids (aa), chains of 131 and 252 aa, or both are chains of 255 aa; Z = disulfide bond for the first two pairs of A and B, and a non-covalent bond for the last pair; n = 2 for the first pair of A and B, and 1 for the other two pairs. The full definitions are given in the DEFINITIONS (Full Definitions) Field.